DevTools: introduce browser domain for basic target discovery.

chrome/browser/extensions/api/debugger/debugger_api.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Implements the Chrome Extensions Debugger API.
 
 #include "chrome/browser/extensions/api/debugger/debugger_api.h"
 
 #include <stddef.h>
 
@@ skipping 349 matching lines @@
 void ExtensionDevToolsClientHost::AgentHostClosed(
     DevToolsAgentHost* agent_host, bool replaced_with_another_client) {
   DCHECK(agent_host == agent_host_.get());
   if (replaced_with_another_client)
     detach_reason_ = api::debugger::DETACH_REASON_REPLACED_WITH_DEVTOOLS;
   SendDetachedEvent();
   delete this;
 }
 
 void ExtensionDevToolsClientHost::Close() {
-  agent_host_->DetachClient();
+  agent_host_->DetachClient(this);
   delete this;
 }
 
 void ExtensionDevToolsClientHost::SendMessageToBackend(
     DebuggerSendCommandFunction* function,
     const std::string& method,
     SendCommand::Params::CommandParams* command_params) {
   base::DictionaryValue protocol_request;
   int request_id = ++last_request_id_;
   pending_requests_[request_id] = function;
@@ skipping 346 matching lines @@
     const std::vector<DevToolsTargetImpl*>& target_list) {
   std::unique_ptr<base::ListValue> result(new base::ListValue());
   for (size_t i = 0; i < target_list.size(); ++i)
     result->Append(SerializeTarget(*target_list[i]));
   STLDeleteContainerPointers(target_list.begin(), target_list.end());
   SetResult(std::move(result));
   SendResponse(true);
 }
 
 }  // namespace extensions